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A comment on Show HN: Anonymous messaging with a 1km radius. Parent comment

Re:Show HN: Anonymous messaging with a 1km radius by bradbeattie on Thursday October 27, 2016 @10:55AM (#12805574)
Could this be defeated by a "snap to grid" technique? The installed client takes the actual location of the user and locates the nearest grid point (the resolution of which is up for debate) and reports as at that location?
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Re:Show HN: Anonymous messaging with a 1km radius by 7952 on Thursday October 27, 2016 @11:38AM (#12805986)
Or increase the radius randomly after a pair of users have communicated for the first time.
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Re:Show HN: Anonymous messaging with a 1km radius by qq66 on Thursday October 27, 2016 @06:10PM (#12810752)
That's not sufficient because a hostile actor could have three phones with three accounts.
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